code: def test_set_model_version_tag_with_empty_string_as_value(client):
      name = "SetMVTagEmptyValueTest"
      client.create_registered_model(name)
      client.create_model_version(
          name, "runs:/run_id/model", "run_id_1"
      )
      client.set_model_version_tag(name, "1", "tag_key", "")
      assert {"tag_key": ""}.items() <= client.get_model_version(
          name, "1"
      ).tags.items()
  
imports: import time
  import pytest
  from mlflow import MlflowClient
  from mlflow.entities.model_registry import ModelVersion, RegisteredModel
  from mlflow.exceptions import MlflowException
  from mlflow.utils.os import is_windows
  from mlflow.utils.time import get_current_time_millis
  from tests.tracking.integration_test_utils import _init_server
label_desc: Use image node_id 19 for calling a global function with example usage: test_set_model_version_tag_with_empty_string_as_value(client) without return types